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A
Supply of Terminals for Analog Signals (U
Nominal voltage
Tolerance
Ripple
Permissible voltage
range
Load current
Connection
Remarks
Voltage Dips and Interrupts of the I/O Supply
Intensity PS1
Time interval between
voltage dips
Behavior
Intensity PS2
Time interval between
voltage dips
Behavior
A-6
VersaPoint™ I/O System Profibus-DP NIU User's Manual – August 2005
)
ANA
24VDC
- 15% / + 20%
± 5%
19.2VDC to 30.0VDC, ripple included
500mA, maximum
Voltage jumpers on the sides
Isolation of the 24V input voltage by means of a diode.
Smoothing through π-filter; corner frequency 9.8 kHz and
attenuation of 40 dB/decade.
U
is not electrically isolated from the 24V bus module
ANA
supply and the 7.5V communications power.
Interruption time < 1 ms
< 1 s
Evaluation criterion 1
A < 1 ms supply voltage dip is not registered by the bus.
Interruption time < 10 ms
< 1 s
Evaluation criterion 3:
Bus disconnection; all outputs of the system are reset.
GFK-1911B
- Quick Links:
- Dip Switches on the Niu
- Leds on the Niu
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